Downhill Build

Started AM riding last year with a Trek Remedy 8. Took it out to Mountain Creek this past weekend and had such a blast (despite eating it several times) that I'm contemplating buying a DH rig.

Problem is, I can't afford a $6k bike.

Here's my question:

Let's say you were to buy a new $2,000.00 frameset (2012 Santa Cruz V10), how would YOU go about the rest of this build (with all new parts) to achieve the best compromise of quality while simultaneously not having your wife/girlfriend freak out on you for buying yet another expensive toy?

Or at the very least, what am I looking at ballpark for a complete build with medium grade components?

Building a bike from the ground up can still be pretty pricey. I did it a couple years ago. I found a used frame for under 2k and used some parts from my first bike ( brakes, derailer and handlebars). My local bike shop hooked me up with some killer deals. I didn't go total high end, I was looking for durability. In total it cost me about $4,500.00
Another way to go about it is to get a lower end new bike and upgrade parts.

1) Don't let your wife and girlfriend meet each other
2) Buy a good used DH bike with parts you want
3) while taking a weekend off to ride, get both of them drunk and see where it goes. If all else fails, at least you have a lift pass for the weekend
4) make damn sure you're prenup is good.